Just started last week but several times now when I'm cruising and decide to downshift to second and "wind it out", when I reach the redline and shift into third it will not go in gear. Still pretty much stock except for what's in my sig. Regular maintenance and oil changes (Mobile 1) No issues at all when shifting normally. There's no knocking or mashing sounds. It drives as good as it always has but for this new shifting problem. If I'm running thru the gears on the hwy it still shifts ok. I have a little over 20K miles and up to now never one single problem with shifting under load. Anybody else?